I've also seen that amongst teachers and tourist visa monkey job guys. They'll act like they're the king of the foreigners or something; the others will be reluctant to question him and his friends as they have been there a while; but every so often a new guy will arrive that simply doesn't give a f**k about this fake supposed social hierarchy and exposes them as the fools that they really are.

That can be why foreigner bars are terrible places, they attract those kinds of guys like flies around shit.